Skills - Claude Cheat Sheet

When a skill beats a prompt or a project, and the anatomy of one: the SKILL.md, the description that decides whether it ever triggers, progressive disclosure, and the resources it bundles. Then packaging, enabling, and testing the trigger both ways.

On the sheet:

- Anatomy of a skill: one SKILL.md, and what loads when

- Prompt, project or skill: which one fits a repeatable job

- What is in the folder: SKILL.md, resources and scripts

- The description does the triggering: the text that decides whether a skill ever fires

- Resources and scripts: what to bundle, and what a script is really for

- Writing the body: an architected prompt with a trigger on the front

- Packaging and installing: zip as root, upload, then enable

- Testing the trigger: checking both failure modes

- From a good prompt to a skill: the six steps to convert one

- When a skill is the wrong tool: when a saved prompt or a project fits better

Two A4 pages, printed front and back, sized to print once and keep beside you while you work. Written in short sentences and plain English, for readers whose first language is not English and clearer for everyone else because of it.

It pairs with the Skills: Teach Your Way of Working book, so you can learn each idea in full and then revise it here in two pages.

Every product fact on this sheet - every plan, price, limit, setting and menu - was checked against Anthropic's own published documentation before the file was made. This is an independent study guide, not affiliated with, authorised by, or endorsed by Anthropic. Instant PDF download. By M.R. Sterling.